OP, the best thing about having your own place is you can decorate it 100% however the fuck you want. And if somebody should stick their nose up at a picture or, god forbid, the instant coffee you serve then you can kick them out the door. Because at the end of the day, they are a guest in your space.
I have a cuddly wyvern from WOW glaring at everyone in the living room, along with admittedly the most hideous rug created (it was cheap, OK? And the orange bits didn't look so... orange, in the online picture), a Discworld calendar, various video game and movie themed toys and a random collection of zombie stuff. I have plans to add some tacky GoT/medieval stuff to really highlight the bare stone walls* 
I don't like your picture. But like others have said, I'd rather see stuff on your wall that you actually like than some print you bought because it was in vogue or you thought it would impress the guests.
You can always adopt magnolia paint, feature walls, twigs in vases or farrow and balls if you want to in the future. Décor is not forever 
*I secretly want my place to look like a steampunk workshop, or an Undercity apothecary's lab (WOW reference sorry), or a medieval hall (but it's far too small so sod that idea...) or something from Fable II, or a... anything but a living room 